Solubility Data of Eight Common Alloying Elements in Magnesium
Solubility Data of Eight Common Alloying Elements in Magnesium
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DOI：
10.1007/s11669-023-01077-5
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发表时间：
2023-12
影响因子：
1.4
通讯作者：
Chuangye Wang;Wei Zhong;Ji-Cheng Zhao
中科院分区：
文献类型：
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作者：
Chuangye Wang;Wei Zhong;Ji-Cheng Zhao
利用电子探针微区分析技术，从扩散倍数和液-固扩散偶(LSDCs)获得的扩散曲线，实验测定了Al、Ca、Ce、Gd、Nd、Sn、Y和Zn等8种常见合金元素在HCP镁中的溶解度。这些溶解度值被用来建立固相线和溶剂线，并与文献报道的实验结果以及使用两个CALPHAD(相图计算)数据库计算的相界进行了比较。我们对镁-钙(530,580,600,630°C)，镁-Ce(605,630°C)，镁-Gd(570,600,630°C)和镁-钕(615,630°C)的实验值是对这四个二元系的HCP固相线的首次测量。报告了从我们的实验中获得的其他溶解度数据，包括：镁-铝(375,420,450,500,550,600°C)，镁-锡(375,420,500,550,600°C)，镁-Y(590,610,630°C)，以及镁-锌(275,450,500,550°C)。我们的实验数据对未来八个二元系的热力学重新评估是有价值的输入。这项研究还清楚地表明了使用优雅的LSDC测量固相线数据的有效性。
The solubility values of eight common alloying elements Al, Ca, Ce, Gd, Nd, Sn, Y and Zn in hcp Mg are experimentally measured from diffusion profiles obtained from diffusion multiples and liquid-solid diffusion couples (LSDCs) using electron probe microanalysis. These solubility values are used to stablish solidus and solvus lines and compared with the experimental results reported in the literature as well as the computed phase boundaries using two CALPHAD (CALculation of PHAse Diagrams) databases. Our experimental values for Mg-Ca (530, 580, 600, 630 °C), Mg-Ce (605, 630 °C), Mg-Gd (570, 600, 630 °C) and Mg-Nd (615, 630 °C) are the first ever measurements of the hcp solidus for these four binary systems. Additional solubility data obtained from our experiments are reported for Mg-Al (375, 420, 450, 500, 550, 600 °C), Mg-Sn (375, 420, 500, 550, 600 °C), Mg-Y (590, 610, 630 °C), and Mg-Zn (275, 450, 500, 550 °C). Our experimental data are valuable input to future thermodynamic reassessments of the eight binary systems. This study also clearly shows the effectiveness of measuring solidus data using the elegant LSDCs.